Motor and compressor technology
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United States of America Patent
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Jun 5, 2012
Grant Date -
Jun 17, 2010
app pub date -
Oct 28, 2009
filing date -
Dec 15, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
An interior permanent magnet type brushless direct current (BLDC) motor includes a stator having a plurality of slots. The BLDC motor also includes a rotor positioned in the stator and that is rotatable with respect to the stator. The rotor has a rotor core, a plurality of permanent magnets inserted in the rotor core, a plurality of vent holes positioned between the center of the rotor core and the permanent magnets, and a plurality of coupling holes positioned between the permanent magnets and a periphery of the rotor core.
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